... xenon kit HMB-S21,slim ballasts 1.Two HID lamps, two ballasts, 2.installation accessories 3.andinstallation manual. HID xenon ballast slim,HID kit ... slim ballasts 35W,HMB-S21HID ballast kit,HID slim ballast kit.high quality and best ... proof and vibration resistant10) Base type: H1, H3,H4, H4 (H/L), H7, H8, H9, H10, H11, H13, 9004, 9005, 9006 ...